# Relationship history for MSHA mine 1517095

Current hierarchy: **Horizon Natural Resources Incorporated → Knott County Mining Company → Megawatt Mine No 2**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Benjamin  Hampton → Megawatt Mine No 2; 1990-02-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** D B H Coal Company Inc → Megawatt Mine No 2; 1991-07-01 to 1993-05-02; source msha-controller-operator-history
- **controller_controls_mine:** Newsome Donald → Megawatt Mine No 2; 1991-07-01 to 1993-05-02; source msha-controller-operator-history
- **controller_controls_operator:** Newsome Donald → D B H Coal Company Inc; 1991-07-01 to 1993-05-02; source msha-controller-operator-history
- **controller_controls_mine:** Zeigler Coal Holding Company → Megawatt Mine No 2; 1992-11-23 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Fleming Enterprises Inc → Megawatt Mine No 2; 1993-05-03 to 1995-01-22; source msha-controller-operator-history
- **controller_controls_mine:** Hansel D  Fleming → Megawatt Mine No 2; 1993-05-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hansel D  Fleming → Fleming Enterprises Inc; 1993-05-03 to 1995-01-22; source msha-controller-operator-history
- **operator_operates_mine:** Crager Fork Mining Inc → Megawatt Mine No 2; 1995-01-23 to 1997-02-05; source msha-controller-operator-history
- **controller_controls_operator:** Benjamin  Hampton → Crager Fork Mining Inc; 1995-01-23 to 1997-02-05; source msha-controller-operator-history
- **operator_operates_mine:** Knott County Mining Company → Megawatt Mine No 2; 1997-02-06 to 1998-09-01; source msha-controller-operator-history
- **controller_controls_operator:** Zeigler Coal Holding Company → Knott County Mining Company; 1997-02-06 to 1998-09-01; source msha-controller-operator-history
- **operator_operates_mine:** Knott County Mining Company → Megawatt Mine No 2; 1998-09-02 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Horizon Natural Resources Incorporated → Megawatt Mine No 2; 1998-09-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Horizon Natural Resources Incorporated → Knott County Mining Company; 1998-09-02 to current/open; source msha-controller-operator-history